myCrypto - Crypto Price Tracker

An iOS application for tracking cryptocurrency prices, developed as a coding assignment. This app displays live market data from the CoinGecko API, built with a modern, reactive tech stack. It is also fully compatible with the new iOS 26 Liquid Glass UI.

📸 Screenshots

✨ Features

• Welcome Screen: A simple and clean introductory screen to onboard the user.
• Crypto List Screen:
  • Displays a real-time list of cryptocurrencies with essential data: name, symbol, current price, 24-hour percentage change, market cap, and trading volume.
  • Shows a mock portfolio balance and performance chart for demonstration.
  • Implements pull-to-refresh functionality to fetch the latest market data.
• Coin Details Screen:
  • Provides a detailed view for each cryptocurrency, including market cap, volume, and current price.
  • Visualizes the coin's performance with a 7-day historical price chart.
  • Allows users to save their favorite coins to a local watchlist using CoreData.

🛠️ Technical Stack & Architecture

• UI: SwiftUI for a modern, declarative user interface.
• Reactive Programming: RxSwift and RxCocoa to handle asynchronous operations, API calls, and UI updates reactively.
• Networking: Alamofire for robust and simplified RESTful API communication.
• Local Storage: CoreData for persisting the user's favorite coins on the device.
• Architecture: The project follows Clean Architecture principles combined with the MVVM (Model-View-ViewModel) pattern. This approach ensures a robust separation of concerns, enhances testability, and promotes a highly maintainable and scalable codebase.

🔗 API Integration

The application fetches all cryptocurrency data from the public CoinGecko API.

The key endpoints used are:

• GET /api/v3/coins/markets: To fetch the list of cryptocurrencies for the main market screen.
• GET /api/v3/coins/{id}: To get detailed information for a specific coin.
• GET /api/v3/coins/{id}/market_chart: To retrieve historical data for the 7-day price chart.

🚀 Getting Started

Follow these instructions to get the project up and running on your local machine.

Prerequisites

• Xcode 15 or later
• iOS 17 or later

Installation

1. Clone the repository:
   git clone https://github.com/aungyelin/myCrypto.git

2. Open the project in Xcode:
   Open the myCrypto.xcodeproj file.

3. Build and Run:
   Select an iOS Simulator or a physical device and press Cmd+R or click the "Run" button in Xcode.